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旨在分析平衡施肥技术及持续效应与毛竹林构成因子的关系 ,尤其注重钾肥施肥量对毛竹生长的持续效应影响。对平衡施肥毛竹进行为期 6年的观测调查 ,研究结果表明 :平衡施肥有较好的持续效应 ,毛竹林施入的肥料在当年对毛竹生长有很大的促进作用 ,在 2年后仍对毛竹生长产生影响。NPK处理的平衡施肥配方持续效应较理想 ,即在N、P两种养分同水平的条件下 ,钾肥的施量要适宜 ,每公顷施氧化钾 90kg的K1配方对笋日生长量、出笋率、毛竹胸径增粗的效果最佳。同时 ,K1配方的持续效应也是最好的 ,2 0 0 2年立竹胸径比 1997年试验前立竹胸径增加 0 .7cm ,其增长率比对照高 79.5 %。
The aim is to analyze the relationship between balanced fertilization techniques and persistence effects and the components of Phyllostachys pubescens forest, with particular emphasis on the effect of potassium fertilizer on the sustained effects of bamboo growth. The results showed that the balanced fertilization had a good sustained effect, and the fertilizer applied in Moso bamboo forest had a great promotion effect on the growth of Phyllostachys pubescens in that year, Growth has an impact. NPK treatment of balanced fertilization formula continued effect is ideal, that is, N, P two kinds of nutrients with the same level of conditions, the amount of potassium fertilizer should be appropriate, hectare K1 90kg of K1 growth on the amount of shoot growth, shoot Rate, bamboo diameter thickening effect best. At the same time, the sustained effect of K1 formula is also the best. In 2001, the bamboo diameter at the beginning of the experiment increased by 0.7cm in diameter than that of the bamboo stand before 1997, and its growth rate was 79.5% higher than that of the control.